Lua script to get MP3 Audio address

Time：2022-5-5

It can run directly under Linux

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#!/usr/bin/lua5.1
--Luacurl http://luacurl.luaforge.net/
--luajson https://github.com/mbalmer/luajson
require("luacurl")
require('json')
 
 
function get_html(url, c)
  local result = { }
  if c == nil then
    c = curl.new()
  end
  c:setopt(curl.OPT_URL, url)
  c:setopt(curl.OPT_WRITEDATA, result)
  c:setopt(curl.OPT_WRITEFUNCTION, function(tab, buffer) -- call back function, must have
    table. Insert (tab, buffer) -- the tab parameter is result. Refer to http://luacurl.luaforge.net/
 
    return #buffer
  end)
  local ok = c:perform()
  return ok, table. Concat (result) -- this table is not the previous table, and the scope is different
end
 
 
function downMp3(id)
  
  local url="http://www.ximalaya.com/tracks/"..id..".json"
  local mp3 = "http://fdfs.xmcdn.com/"
  local ok,html = get_html(url)
  if ok then
    local result = json.decode(html)
    print(mp3..result.play_path_64)
  else
    print("error")
  end
end
if arg[1] and tonumber(arg[1]) then
  downMp3(arg[1])
else
  print("Please enter number")
end
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